Reply To: Species transport combustion issue.

[Ren]

Hello, Neeraj,

If the flow is indeed turbulent, then the FR/ED model is applicable. To numerically ignite the mixture, follow these steps:

1. run the calculation for some number of iterations, say, 100, to establish some mixing of the reactants.
2. define a small region in the expected flame region using, e.g., a region cell register, patch a high enough temperature (e.g., 2000 K) in this region. In addiiton, patch a reasonable value for a product species (e.g., co2 or h2o) mass fraction.